Cut a 6-foot-8 1/4-inch length of 1/2-inch-wide white paper ribbon.
Starting at one end of ribbon and using measurement lines on a cutting mat as guides, make folds at 4-inch intervals, creasing with a bone folder. (There should be 20 folds in all, with 1/4 inch of ribbon extending beyond final fold.)
Bend top end of ribbon to meet first fold, forming a loop. To secure loop, place a 1/4-inch-long piece of heavy-duty, doublesided tape where top end and fold meet. Press with fingers to seal.
Bend ribbon to form another loop. Place tape between loop to secure. Press to seal.
Repeat to create loops down length of ribbon (use tweezers to press if needed).
Apply tape to 1/4-inch tab, and attach to base of first loop. Press to seal.
Insert a length of linen thread through a loop, and knot to hang.